Převést FLV na MKV

Free online FLV to MKV converter. Fast, secure, no signup required.

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Accepted: FLV files · Max 100 MB per file

flv mkv

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Need to convert FLV to MKV? MegaConvert makes it easy. Upload your Flash Video (FLV) file and get a Matroska Video (MKV) file in seconds — no software to install, no signup required. Whether you need this conversion for social media, video editing, device compatibility, web streaming / archival, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert FLV to MKV Online

1
Upload your FLV file
Click the upload area or drag and drop your FLV file. Files up to 25MB are free. Larger files are supported with pay-per-use.
2
Choose MKV as output format
MKV is automatically selected on this page. You can adjust conversion settings if needed.
3
Click Convert
Hit the Convert button to start processing. Your file will be converted using our high-performance servers.
4
Download your MKV file
Once conversion is complete, click Download to save your new MKV file. Free files are available for 1 hour.

Why Convert FLV to MKV?

**Modernize your files** — FLV is an older format. Converting to MKV ensures better compatibility with current software and devices.
**Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
**Software requirements** — Your software or platform may require MKV format specifically. Converting ensures full compatibility.

FLV vs MKV — Format Comparison

Feature	FLV	MKV
Full Name	Flash Video	Matroska Video
Developer	Adobe Systems (Macromedia)	Matroska (Steve Lhomme)
First Released	2003	2002
Category	Video	Video
Extension	.flv	.mkv
MIME Type	video/x-flv	video/x-matroska

Re-encoding video may reduce quality. Use MKV for lossless container conversion.

About FLV Format

Flash-based video format once dominant for web video streaming, now largely replaced.

Full name: Flash Video

Developer: Adobe Systems (Macromedia) (2003)

About MKV Format

Open container format supporting virtually any video, audio, and subtitle codec.

Full name: Matroska Video

Developer: Matroska (Steve Lhomme) (2002)

Často Kladené Otázky

Upload your FLV file to MegaConvert.io, select MKV as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.

Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.

Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.

Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.

Flash-based video format once dominant for web video streaming, now largely replaced. Developer: Adobe Systems (Macromedia) (2003).

Open container format supporting virtually any video, audio, and subtitle codec. Developer: Matroska (Steve Lhomme) (2002).

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